body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

.container {
  display: flex;
  margin-top: 0px;
}

.sidebar {
  background-color: #358;
  width: 150px;
  padding: 20px;
  height:593px;
}

.sidebar ul li:nth-child(3) {
  background-color: #679;
  border-radius: 10px;
}

.sidebar ul {
  list-style-type: none;
  padding: 0;
  margin: 0;
  margin-top: 100px;
}

.sidebar ul li {
  margin-bottom: 15px;
}

.sidebar ul li a {
  text-decoration: none;
  color: #eee;
  display: block;
  text-align: center;
  padding: 10px;
}

.content {
  flex-grow: 1;
  padding: 20px;
}

h1 {
  font-size: 24px;
  text-align: center;
  margin-bottom: 30px;
}

.info {
  margin-top: 50px;
  background-color: #f2f2f2;
  padding: 20px;
  margin-left: 60px;
  margin-right: 60px;
  height: auto;
  border-radius: 10px;
  min-height: 450px;
}

.centered {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 20px;
}

#subBtn {
    height: 40px;
    width: 100px;
    margin-top: 100px;
}

.sele {
    height: 45px;
    width: 550px;
    margin-top: 90px;
    font-size: 18px;
}